The AMO Guide to Archive Outsourcing provides links to information about service providers specializing in this service.  Many organizations are considering the outsourcing of their archive platform either for reasons of limited on-staff skills or budgetary constraints, or to take advantage of the outsourcing option in order to "green" (reduce power requirements in) their data centers. 

Is outsourcing the right option for you.  Read about it in these vendor supplied links, and suggest your own links to articles or papers if you run across resources that should be shared here.

Thanks.